Posted by IRC 78-2014 (standard specifications and code of practice for road bridges) is a detailed guideline for foundation and substructure for bridges.
You can download IRC 78-2014 with this link
You may wish to download
- IS 456-2000 plain and reinforced concrete-code of practice
- IS 456-2000 July 2019 ammendment
- IS 10262-2019 Guideline to concrete mix design
- IS 800-2007 Code of practice for design of steel structures